Home / 68,497.02-102,745.71-21,110.58

Finding the Fourth Proportional to 68,497.02, 102,745.71 and 21,110.58

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Solution

The fourth proportional to 68,497.02, 102,745.71 and 21,110.58 is: 31,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,497.02 : 102,745.71 = 21,110.58 : x
  2. Step 2: Convert to fraction form
    68,497.02/102,745.71 = 21,110.58/x
  3. Step 3: Cross multiply
    68,497.02x = 102,745.71 × 21,110.58
  4. Step 4: Simplify right side
    68,497.02x = 2,169,021,530.61
  5. Step 5: Solve for x
    x = 2,169,021,530.61/68,497.02
  6. Step 6: Final answer
    x = 31,665.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.